Carpenter&#39;s square



@MTE D f ST Amas PATENT .ormoni orHELIUs J. oLsEN, E PORTLAND, OREGON'.`

i To all whom t may concern:

CARPENTERS SQUARE.

Be it known that I, kO'rHELiUs J. OLsEN, a citizen of the United States, residing at Portland, in' theA county of Multnomah and` State of Oregon,

useful Carpenters Square, of which the 'fol. lowing is a specification.v

have invented a new and My invention rel( tes to improvements in squares in which one member is provided with leveling tubes for horizontal andvertical leveling, `and wherethe other member may be detached when not in use.V

The objects of my invention are: f

v First, to give the carpenter a` tool at his disposal which permits bothsquaringand leveling. Y

Second, to combine in my machine utility with Vstrength without ponderosity'.

Third, to provide a tool which can con-V veniently be stored in any ordinary chest.

illustrated in the accomp whichy Figure I vis-a plan view of the` entire anying drawing in square Fig'. II is a partial side view of the removabletongue; Y

, Fig. III is a'section through I along".Vv

the line aga..

Fig. IV is a section through Fig. along `tlieilne bh Similar numerals refer v to similar v. parts throughout the several views. p

My square comprises two separable members which, for the sake of identification,

may be designated `as main member c and tongue.

The mam member is of hollow construction and details'thereof appear in the sections Figs. III and IV, Where it is shown that the top plate 1 and the side plates 2 are bent of yone single piece of sheet steel; the

channel formed thereby is covered by anthe bottom other strip of sheet steel, viz,

suitable inplate 3. Rivets l, spaced at tervals, hold the two vplates together. Separators 5, used in connection with the rivets where necessary, insure the proper distance v between the two plates. Three leveling tubes one in the center being positioned for horitool A I attain these objects with the mechanism i provid'n-g Gare inserted'in the Signed by me at hollowV space between the plates 1 and 3', theVV Specification of Letters Patent. Patented play, 9,1920, Application filed Junev231919.. Serial No. 306,115. Y Y

Zontal -lelelll Hdl the other two `for verti- CLl l-Villng.v Openings 6a in the toppand bottom platesmust, of coursebe provided for lthe observation of the leveling tubes.

The tongue is fashioned of solid metal,

and appears in side view (Fig. II) somewhat tapering toward lthe end17 and has the other end 8 provided with a tenon 9k which extends longitudinally of the tongue.

Said tenon slides in acorresponding mortiseV A pawl 11 at the end of the .tenonlen-IV gages a recess 12 in the top platel and pre-Y vents involuntary separation of the tongue from the main member.

lWith the tongue withdrawn itpbe'comes a simple mattei' to store both parts inV an ordinarytool chest. t Y

`Having thus described my invention it will be seen that my objects havebeen ac-VV complisvhedl and, though I have shown the preferred form of'construction, I reserve to myself the I. do not violate the spirit principle of my invention. lIclaim:M p y l" 1. In va carpenters square, the combination of one long'member and one shortmember at rightV angles tov the 'long member 'and forming an integral part. thereof, having and right to make lminor changes, n

the top. and side plates bentfof one vsingle l piece, riveted` to the top plate, tise in the end of the short vmember llongitudinally of said member, "with a removable extension member V'of Asolid construction, having a tenon at one end longitudinally of said extension member,

being slidably mountedv Within the mortise ofthe short member. Y v

2. In a Carpenters square, the combination of a. hollow plate at one end split and bent inwardly to form a mortise,l with' a removable solidez;-y

having a cover plate atthe bottom and having avmor- Yand capablev of v member, having -the top l tension member having a tenon at oneend being slidably mounted of the main member.

Portland, in the State of Oregon, this 417th day of June, 1919.

and capable of" within the mortise n oTHELiUs J. oLsENQ 

